defRepeat {simstudy}

Add multiple (similar) rows to definitions table

Description

Add multiple (similar) rows to definitions table

Usage

defRepeat(
  dtDefs = NULL,
  nVars,
  prefix,
  formula,
  variance = 0,
  dist = "normal",
  link = "identity",
  id = "id"
)

Arguments

dtDefs

Definition data.table to be modified

nVars

Number of new variables to define

prefix

Prefix (character) for new variables

formula

An R expression for mean (string)

variance

Number or formula

dist

Distribution. For possibilities, see details

link

The link function for the mean, see details

id

A string indicating the field name for the unique record identifier

Details

The possible data distributions are: 'r paste0(.getDists(),collapse = ", ")'.

Value

A data.table named dtName that is an updated data definitions table

See Also

[distributions]

Examples

def <- defRepeat(
  nVars = 4, prefix = "g", formula = "1/3;1/3;1/3",
  variance = 0, dist = "categorical"
)
def <- defData(def, varname = "a", formula = "1;1", dist = "trtAssign")
def <- defRepeat(def, 8, "b", formula = "5 + a", variance = 3, dist = "normal")
def <- defData(def, "y", formula = "0.10", dist = "binary")

def